It should be noted that the \(p\bar{p}\)  will be annihilated into gluons first, then those gluons will be converted into the di-\(J/\psi \)  final state. The production of the full-charm tetraquarks at LHC was discussed and the relative cross section for the process \(gg\rightarrow J/\psi J/\psi \)  was estimated [1]}, [2]}. The cross sections performed are around 10 pb, which have the same order of magnitude with the results exhibited here.
